【BUG日记】【SpringBoot】启动SpringBoot项目的时候，报错 “The following method did not exist: org.quartz...”（二）

【日期】： 2020/12/4

【问题】： 启动SpringBoot项目的时候，报错

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-12-04 17:16:22.709 ERROR 9924 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    org.springframework.scheduling.quartz.SchedulerAccessor.registerListeners(SchedulerAccessor.java:351)

The following method did not exist:

    org.quartz.Scheduler.getListenerManager()Lorg/quartz/ListenerManager;

The method's class, org.quartz.Scheduler, is available from the following locations:

    jar:file:/D:/Ali-Maven-Repository/org/opensymphony/quartz/quartz/1.6.1/quartz-1.6.1.jar!/org/quartz/Scheduler.class

It was loaded from the following location:

    file:/D:/Ali-Maven-Repository/org/opensymphony/quartz/quartz/1.6.1/quartz-1.6.1.jar


Action:

Correct the classpath of your application so that it contains a single, compatible version of org.quartz.Scheduler

【原因】： 因为引入了发邮件的依赖就出现这个错误。

		<!--发邮件 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-mail</artifactId>
		</dependency>

【如何发现】： 由于是引入依赖才导致运行出问题的，然后一个个排查依赖，结果发现了这个依赖有冲突。

【如何修复】： 在上次引入JPA依赖启动报错的时候，就想研究明白，为什么引入这些依赖就会这个死循环错误。这次排查了一下依赖问题，原来是引入的依赖里有jar包冲突。

在引入的依赖里，排除有冲突的依赖即可。

	<!-- 去除冲突的jar包 -->
			<exclusions>
				<exclusion>
					<groupId>org.springframework</groupId>
					<artifactId>spring-context-support</artifactId>
				</exclusion>
			</exclusions>

		<!--发邮件 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-mail</artifactId>
			<!-- 去除冲突的jar包 -->
			<exclusions>
				<exclusion>
					<groupId>org.springframework</groupId>
					<artifactId>spring-context-support</artifactId>
				</exclusion>
			</exclusions>
		</dependency>

【总结】： 知识不够巩固，还是非常欠缺。

【BUG日记】【SpringBoot】启动SpringBoot项目的时候，报错 “The following method did not exist: org.quartz…” （一）